Unless things have changed drastically since I was at BigCo (and maintained a branch of Unity 4 for several teams, so was very familiar with the codebase, and t

Unless things have changed drastically since I was at BigCo (and maintained a branch of Unity 4 for several teams, so was very familiar with the codebase, and their native code was horrific) unless you have serious sway you don't get engine source, and in my experience that's where a ton of the bugs that will screw you lie. In fact I'm dealing with a few right now at a smallCo that definitely doesn't have access (we've asked) to the important pieces of code that are making our lives hell. I definitely agree that shipping more stuff in C# packages is a good thing, and those are mostly well written, I mostly just hate the actual C++ engine, which is frankly a disaster held together by bubble gum and spit.